Grain-car door



N0 MODEL.

PATENTED JAN. 19, 1904.

J. BARRY.4

GRAIN GAR DOOR.

APPLIOATION FILED DBO. 23. 1902.

NIW',

xll'lmmljumi il @man if l No. r750,149.

l UNITED STATES Patented January 19, 1904.

PATENT OFFICE.

JAMES BARRY, or SEATTLE, WASHINGTON, AsSIGNoR or oNE-HALE'To AUeUsTA R.'-JoHNsoN, or SEATTLE, WASHINGTON.

GRAIN-CAR Doon.

SPECIFICATION forming part of Letters Patent No. 750,149, dated January19, 1904. Application filed December 23, 1902. Serial No. 136,394. (Nomodel.)

.To all wit/mt t 71u12/ concern:

Be it known that I, JAMES BARRY, a citizen of the United.States,`residing at Seattle, in the county of King and State ofWashington, have invented certain new and useful Improvements inGrain-Car Doors; and I do hereby declare the following to be a full,clear, and

exact description of the invention, such as will enable others skilledin the art to which it appertains to make and use the same.

This invention relates to improvements in grain-car doors, andparticularly to locking means therefor.

The object of the present invention is the provision of a grain-car doorcarrying means for laterally projecting securing-bolts for resistinginternal pressure and retaining the door against the weight of thecontained grain.

With this and other objects in view the invention consists of certainnovel constructions,

combinations, and arrangements of parts, as will be hereinafter fullydescribed and claimed.

In the accompanying drawings, Figure 1 represents a transverse verticalsection taken through a car provided with doors embodying the featuresof the present invention. Fig. 2 represents a view in side elevation ofa door embodying the present invention, a fragment of the side of thecar being illustrated in connection therewith.

In the handling of grain in cars it has been found desirable'rto providedoors capable of being moved out of the way of the workmen in removingthe grain from the car, and in order to accomplish this result Icontemplate providing any suitable car 1 with a vertical groove 2 ineach side of a door-frame 6, extending to and communicating with adiagonal groove 3 in a timber 5 substantially parallel with the roof ofthe car, the upper end of each groove 3 terminating with a slightlydownwardly extending portion 4. Of course when constructing the car Ifind it desirable to provide a door upon each side thereof, andtherefore form grooves 2 in the door-frame on the opposite side of thecar to groove 2, communicating with a groove 3', extending across thecar beneath the upper end of the groove 3 and being provided with adownwardly-extending portion 4, both of the grooves 3 and 3 being Acutor formed in any suitable timber 5. The car, of course, is provided witha doorway upon each side thereof, each of which is closed or partiallyclosed by a door 7, and as each door 7 is a duplicate 'of the other Ishall describe only one, and this description is applicable to both. Thedoor 7 is provided at its upper end with a transverse supportingshaft 8,provided with any suitable rollers or retaining traction means 9,engaging the grooves 2 when in a lowered condition and when the door israised engaging the downwardly-extending portion 4 and retaining thedoor in such raised condition, any suitable laterally extending flange10 being carried by the timber 5 for supporting such door in a raisedcondition. The body portion of the door 7 may be formed of any suitablematerial, and its outer face is provided with lugs 11 11, suitablyheaded and engaged by slotted links 12 12 between the heads thereof andthe outer face of the door, the slots of such links permittinglongitudinal movement thereof on the lugs.

' The links 12 are arranged in sets and have their inner ends pivotallyconnected together by means of rivets 13 13, said rivets pivotallyconnecting therewith an operating-bar 14, which bar is preferablyprovided at its upper end with a hook or other operating means 15. Theouter or free ends of the links 12 carry laterally-movable locking barsor bolts 16 16, and the lower set of links 12 carry depending bolts 1717. The door-frame is cut away, as at 18 18 on either side and as at 1919 at the bottom, for the reception of such locking-bolts.

In operation the door 7 is brought to a closed position and the bar 14placed in the position respectively, the links 12 assuming the posi-`tion indicated in dotted lines in Fig. 2 and sliding longitudinally foraccomplishing the retraction of said bolts. yI/Vhen the bar has assumedthe given position, all of the bolts willy be within the plane of theedges or' the door, and the door will be free to swing outwardly underthe pressure of the contained grain. When it is desired to again lowerthe door, the bar 14C is again longitudinallymoved to its centralposition, and the bolts are thereby shot to a locking condition.

In connection with the present form of graincar door is employed thecommon form of sliding door 20, as is well known in the art.

Having thus fully described my invention, what I claim as new, anddesire to secure by Letters Patent, is-

l. In agrain-car door, the combination with a body, of sets of parallellinks carried thereby, bolts carried by the outer ends of each set oflinks, means pivotally connecting the inner ends of all of said linksand spacing the same apart and adapted to be moved vertically for movingsaid links longitudinally while maintaining their parallelism, andvertically-moving bolts carried by some of said links.

2. `In a grain-car door, the combination with abody, of sets of parallellinks, a bolt carried by each set of links, and means spacing the linksapart and designed to be shifted for moving said links longitudinallywhile maintaining their parallelism, whereby said bolts may be projectedor retracted.

3. In a grain-car door, the combination with a body, of a normallyhorizontally arranged link pivotally carried by each side of said body,means pivotally connecting the inner ends of said links,similarly-arranged links carried by said body beneath thefirst-mentioned links and arranged parallel to said first-mentionedlinks, the upper andlower links of each side of the door forming a pair,a bolt carried by each pair of links, and a bar connecting the innerends of said links for simultaneously moving the same while maintainingtheir parallelisrn.

In testimony whereof I hereunto affix my signature in presence of twoWitnesses.

JAMES BARRY.

Witnesses:

(i. WARD KEMP, C. C. PHILLIPS.

